B.Sc-Zoology Major-1.2-Animal Diversity-Sessional -Question Paper-2017

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2017

Zoology (Major)

Paper:1.2

(Animal Diversity)

Full Marks:60

Time:3 Hours

1. Answer the following questions: 1x7=7

(a) Name a multi-nucleated protozoa.

(b) Name any one type of spicules found in Porifera.

(d) What is Hexacanth ?

(e) Whati is Hermaphroditism ?

(f) Which larva of Mollusca is an Ectoparasite of fishes ?

(g) Name the larval forms of Asterias.

2. Answer the following questions: 2x4=8

(a) What hepatopancreas ? How does it help in digestion in Prawn ?

(b) Write the significance of polymorphism in Siphonophora.

(d) Describe the structure and function of compound eye.

3. Answer any three questions: 5x3=15

(a) Describe the locomotion in Protozoa.

(b) What are Endoparasites ? Describe the parasitic adaptation of Ascaris lumbricoides.

(d) Why is Peripatus is known as connecting link between Annelida and Arthropoda ?

(e) Define Pre-erythrocytic schizogony of sporozoite in liver of infected Animal.

4. Answer the following questions: 10x3=30

(a) What is nutrition ? Describe the mode of nutrition in Protozoa with suitable examples. 2+8=10

What is canal system ? Describe the canal system found in sponge with diagram. 3+7=10

(b) Give details of the life cycle, pathogenecity and prophylaxes measures of Ancylostoma duodenale. 6+2+2=10

Describe the life history and parasitic adaptation of Fasciola hepatica. 8+2=10

(c) Describe the salient characters of phylum Mollusca and classify the class Gastropoda up to order with suitable examples. 4+6=10

Write a note on water vascular system in Echinodermata with its significance. 8+2=10

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